Heat-generator



A. SAUER.

HEAT GENERATOR. APPLICAUON FILED SEPTE 24,v 1919.

A. SAUER. HEAT GENERATOR. APPLICATION FILED. S,EPT24',V1919A PanteaP61122, 1921.

V4r SHEETS-SHEET 2- A. SAUER..

HEAT GENERATOR.

APPLICATION FILED sI-:ITgzm I9I9.-

I mY Wnesses:

A. SAUER. -HEAT GENERATOR. APPLICATION HLEDKSEPT, 24| l|919,

v Patented Feb. 22, 1921;

4 SHFETS-SHEET 4- STATES .ADELBERT sAUEn, or 1r'r'rsannoia,-PENNSYLVANIA.

HEAT-GENERATOR. p

' sbeiiicetiqn of Letters rateiit.' Patenmd Fab. 229 gm;

Application led September 24, 1919. Serial-No. 326,04ft.

To aZZw/tomz'tmay concern.'

Be it known that l, ADELBERTASAUER, a citizen of the "United States,residing at Pittsburgh, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements in HeatGenerators, of which thek following is a specification. i i

My invention relates to improvements in Vmeans for heating fluids, asair,lforutilization in anymanner desired, as for' the heating vofbuildings, or to the generation y.of steam in the manner of a boilerIThe inventionv has in view to provide a Jfurnace construction-adaptedto the combustion of any suitable fuelr and the provision'of heatingchambers and circulating pipes or passages, whereby -tol bring the fluidto be heated into operative vrelationship with the vand outer walls 2and 3 respectively and lline H-H oi Fig.v 1;

gases of combustion and also the waste gases, for the transmission ofheat thereto,

ina direct, economical and effective manner. ln' carrying out myinvention, yI have so arranged the several circulating passages,

etc., so as to also utilize to thevfullest degree the latent heat intheoutgoing products of combustion.

In the accompanying drawings illustrating one preferred embodiment ofthe invention, r

Figure 1 is a View in front elevation of my improved apparatus showingit con nested with a distributirig register or the lilie; l

' Fig. 2 is a vertical sectional view on the Fig. 3 is a horiro'ntalsection on the l' e iii-iii of rig. 2; i Fig. 4 is .a `similar sectionon the line V-IV of'Fig. 2;

Fig. 5 is a lvertical section on the line Fig'. 6 is a similarl section'on thev line VI-VI of Fig. 2;.y 1

Fig? J'is a partial sectional view similar to Fig. 2 showing theapparatus designed for superheating steam; and

Fig. 8 -is a vertical section on the line VKL-VIH of Figui?.

In carrying out my invention I provide an inner combustion chamber orfurnace A within an `interior ,shell .or wall 2 ofsuitablre sheet orplate metal and asimilar outerg 4 e, wall 3, with Aa continuousintervening air circulation space 4. As shown, the' inner .wardly'to a,suiiicient height toproper space 4 are'rounded at the top' in semi-cyk'lindrical formation, although any other suitable shape may be adopted,whereby Ato vprovvide for god lconstruction and freefcirculation. Y Thefront portion of the furnace vchamber is closed by a similar wall 5 andEtherear portion by wall 64 suitably con-f" nected as by riveted angleirons, as shown;

` Inwardly beyond the rearwall4 6 is a @i5 transverse partition. 7separating the main interior combustion chambenA from a rear chamber B,into -which products of combus*` A' tion pass from the furnace'chamberthrough `one or `more 'circulating' openings 8. vSaid To openings are,as shown, located at` the lower portion of partition 7, andrear wally.;6 is provided with oneor more outlety connections `9 leading to a stackor other point of.` distribution, and preferably provided with acontrolling dampenl. f f

Furnace chamber A may be 0f anysuite-,il able constructionMeither forcombustionfyo'l?A fluid or vaporized fuel, as by means ofan oil or gasburner C, like that shown in my et prior application Serial No.V321,970,"ei-

tending inwardly through a suitable open-1n;v ing or openings in thefrontwall o' the.

Ipheric air to the interior of the furnace, -it is supplied with a vdoor13 having suitable dampers for the inflow of atmospheric air, and also,if desired, with a plurality of air sup ly pipes 14 leading 'inthroughthe sidel wal s2 and, which may alsobe--providfed with controllingdainpeis, asdesired: l

The front portion of the space belowthe 'furnacechamben underneath thegrate'bars- 1,1, is closed ofi by a transverse par'tition15,-

vproviding asuitable ash pit 16 having opening and closing door 17 ofwell known co"nstruction. Rearwardly'bevondl kartition 15 10e is an airspace 18 extending or thev vfull width of the Structure, between the'outer' i walls 3 and from, partition` lbackwardly to rear Wall 6,providingv a preliminary heating box. or "chaniber underneathA y,thefurnace. .i For the purposefoiv introducing atmospheric air thereintoAfrom the"'oiit`side,

2 y i-,aeegixte partially heated thereby before passing downwardly intothe rear end of chamber 18, and forwardly therethrough.

The ash pit 16 wis of substantially the same width asthe furnace chamberabove the' grate bars and is inclosed by supple- .mental side walls l5spaced inwardly beyond outer wall 3 whereby to provide the forwardlyextending supplemental air heating chambers 20-20, communicating with:the main chamber 18. By this means, I

utilize the full length .of the structure below the furnace chamber forthe preliminary airheating cavities 18, 20, 20, which cavities are inopen communication upwardly with' the continuous space 4 up to andaround the top between the main inner and outerwalls Fdr the purpose ofequalizing pressure between the opposite sides of such cham ber, Iprovide series of transverse pipes or conduits 2,1 extending through andconnecting the inner walls 2, set somewhat closely 'together andalternating at the upper level with the device ofthe lower level, .asindicated, whereb to effect a very thorou h and intimate eatingcirculation of t ie gases of combustion throughout the area of thefurnace chamber. At the upper portionof the heating chamber are a seriesof heatedA fluid supply pipes 22 extending horizontally across from oneinner side wall 2 through the other inner and also outer wall 3' to theexterior of the heater, as indicated in F ig. :5, and, connected withthe supply conduit 23 leading to one orfmore'" `registers 24 or othersuitable utilizing devices.v At its rear end the heater is provided witha clean-out door 25 at the base of chamber B, opening out through therear wall 6 by which the interior may be cleaned from time to time ofaccumulated ashes or other deposits.

In using the apparatus for the heating of air or other gaseous fiuid,the circulation and heating of the air effected in the manner abovedescribeclfiaiidindicated, the supply iff air and its temperature beingeasily regulated or controlled by the apertuye, as will be readilyunderstood. When i used or designed for the generation of steam, lthe;conduit,19, spaces 18 and 20,

spaces il; aiid transverse pipes or tubes 21 "will bei il'lfd 4withvwater up to a suitable level, as in icated by the line a--a, Fig. 5,

andv the ulper portion of chamber 4 and transveirsefl :utlet pipes 22will then be used to containi and convey the produced steam.

' It will, of course, be understood that when designed 'for use as asteam generator, all` i .of su ply.

of the parts `through which the water and steam circulate will be madetight, as is customarily necessary, and in such event, the bottom ofchamber 18 may be closed by a bottom plate extending across the entirearea of the chamber and tightly connected to the sidey and end wallsthereof.

Otherwise, the apparatus may/be mounted upon an ordinary cement or othersuitable foundation,` as indicated in Figs. 1 and 2.

In Figs. 7 and I show a modified construction for suph'eating steam by'utilizing the heat of t e products of combustion through the outletchamber Nb and conduit 9*,to the stack. In such case, the steam or vaporcavity 4*v1 is connected by pipe 26 witha manifold 27 and a series ofVerti- -cal pipes 28 extend downwardly through the chamber b to anothermanifold 29 havn l ing a deliveiriy pipe 3 0 leading to any point heconstruction of the furnace .chain er and the apparatus is substantially`as already described and shown, and the waste gases in circulatingaround the pipes therethrough and outwardly to the stack,`

will effect a preliminary and main vheating of the iiuid in thesamemanner generally as-above described.

The construction and operation of the invention will be readilyunderstood and appreciatedby those familiar with -the art.

It is comparatively simple and 'economical i in .construction andoperation, very highly efficient in the generation of steam andutilization lof all of the heat units of the fuel andof the ordinarilyvwaste products of combustion. The invention is very com: pact inconstruction, capable of being adapted in any suitable size to variousapI plications, .either domestic or industrial, Vand will be found tomeet the requirements of apparatus 'of this general type. u

It may., be variously changed in detail construction, design,dimensions, oiotherwise, by the skilled mechanic or builder, but allsuch changes are to be considered as within the scope of the following.claims.

What 'I claim is:

1 Heating apparatus of the classdescribed consisting of an inner` casinginclosing a furnace chamber, aniouter surrounding casing spaced awaytherefrom and providing an intervening heating4 and circulaias tionspace, transverse circulation conduits opening through the oppositesides ofthev inner casing and connecting opposite p0rtions of thecirculating s'pace, an outlet e011-,

conduits for the furnacer chamber leading' inwardly f rom the exterior`through the- -outer and inner casings, anoutlet` conduit i j forproductsof combustion, means travversing the top of the furnacervr chamber forcarrying off heated fluidfroml the heating 1. space whereby fluid beingl'conducted from the heating space is subjected to a final heating inthe furnace chamber.

. ingg'c'asing spaced awavl;

3. ln combination,` i-ii inner casing in-V an outer inclosclosiiigfafurnace chainbe efrom providing `a'icirculation space below-and at eachside of:i the furnace chamber, an outlet conduit for productsofcombustion communicating with the furnace chamber, and an air supvplyconduit ,extending -vthrough the outlet conduit# and communicating withthe circulationy space, and means traversing the top portion'of thefurnace'chamber forcarrying "oiff heated iiuid fro-inI the circulation.space atv apoint near thetop thereof.

4. In combination, anl inner casing inclosing a furnace'chamber, Aanouter mclosing casing spaced awaytherefrom providing a circulation spacebelowA and at 'each side of the furnace chamber, an outlet conduit from=,theiurnace,an 'air' supply conduit leading. 4therethrough to thelcirculation space, transverse 'circulationconduits oo nnecting the;inner' casing vwalls at opposite sides, and outlet conduitsfleading fromsuitable points in the circulation space and eX- tending across theupper portion ofthe furnace' chamber and through the inner and outerAwalls at the opposite. side whereby the fluid is subjected to -a finalheatingjn the l furnace after'being conducted from the circulatio spaceand before being con-ducted awa',

. ngcombination, an inner casing inclosi'ng'a furnacev chamber, an outerlnclosculation space.

ing casing spaced away therefrom .providing acirculation space below andat each side of the furnace chamber, an outlet conduit from the furnace,an air supply conduit leading therethrough to the circulation space,transverse circulation vconduits. connecting the inner casingjvalls atopposite sides, outlet conduits connected with the inner wall at voneside and extending across the upper portion of the fulrnace'chamberaiidvtlirough the inner and outer walls .at the .opposite side wherebythe'fluid is sub# jected to a final heating in4 the' furnace chamberafter leaving the circulation space, and air supply conduits for thefurnace chamber leading intothe furnace chamber through both walls.

6. In combination, a rectangular inclosing casing provided with afurnace chamber at its' base and an arched top, an outer'cas-l ingspaced away therefrom providing a.

heating space having a correspondingly arched top and extending below-the furnaceA chamber level and providinga transverse heating cavity incommunication with the heating space, an' outlet conduit leadingV fromone end ,of the furnace chamber for4 products of'combu'stion, a seriesof heating pipes leading therethroughA adapted to be heated by thecirculating products of combustion to give a preliminary heating tothefluidA passing into the heating space near the top thereof and throughthe top of the furnace chamber for' conducting the heated fluid from theheating space whereby the fluid is subjected to a fina-l heating in thefurnace chamber after leavingI the heating space.

7. In combination, an inner casing inclosing a furnace chamber, an outerinclosing casing spaced away therefrom providing a circulation spacebelow and at each side ofI the furnace chamber, an outlet conduit fromthe furnace, an air supply conduitlleading therethrough to thecirculation space, transverse circulation conduits connecting'thef innercasing Walls at opposite sides, and otlet conduits leading from suitablepoints near the top of the circulation space and exnace chamber wherebyrthe fluid is subjected to a final heating in the furnace'aftery .being`110 tending across the upper portionof the furconducted fromthecirculation space, said /outlet conduits beingv alternately arranged onopposite sides of the furnace to remove heated fluid from differentsides of the ciri In testimo ny whereofuIv hereunto affix my signature.i'

:AD-ELBRT'SAUER.'

